Wireless networks Archives - Page 2 of 2 - Telecom Academy
VoIP: SIP, MGCP, RTP, H.323
VoIP: SIP, MGCP, RTP, H.323

VoIP Voice over Internet Protocol (VoIP) is a method to carry voice traffic digitally over a network. Initial providers release services that emulate the traditional phone systems, changing out analog lines for digital. More recently, call services like Skype have started offering new alternatives.Session Initiation Protocol is a signaling and control protocol for communications. It is most commonly used for voice and video […]

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Difference Between DNS and NetBIOS
Differnece between dns and netbios

DNS (Domain name system) The DNS Domain Name System is what translates your favorite domain names into IP addresses. It was first designed at the University of California Irvine in 1983. It is designed to be a hierarchical distributed system. It’s capable of translating the massive amounts of requests required by the internet or within a small private network. If a client wants […]

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Difference between Packets and Frames
Packets and Frames

Frames is the last PDU used before information is put on the wire for transmission. Packets are formed of control information and the payload. When working with addressing and information flow, I tend to spend a significant amount of time in layers two and three, which are data link and network, respectively. Layer two refers to communication between devices on a common […]

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Understanding ARP (Address Resolution Protocol)
Understanding ARP (Address Resolution Protocol)

ARP (Address Resolution Protocol) The ARP command is a tremendous troubleshooting tool for ARP issues as well as layer two troubleshooting. ARP stands for Address Resolution Protocol and is responsible for doing the layer three IP mapping to layer two MAC addresses. Whenever a computer needs to send information to another host on a directly connected subnet, it will first check its […]

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Aviation Communication Systems
Aviation system

What is Aviation? Aviation or Air transport system both refers to the activities surrounding air craft and mechanical flights industry. Aircraft includes fixed-wing and rotary-wing types, morphable wings, wing-less lifting bodies, as well as lighter-than-air craft such as balloons and airships. How An Aviation System helps to safeguard the passage in Air ? Satellite-aided ATC […]

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The world’s largest Top 10 telecommunications companies
Top 10 Telecommunications companies

Top 10 telecommunications companies The world’s top 10 Telecommunications companies each have a market value of more than US$100 billion. Top 10 Telecommunications companies developed the telecom system and ever-growing telephone and wireless connection needs, now days there are many small and large Telecommunication companies but following are the top 10 telecommunications companies. You may […]

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What is Ad Hoc Network?
What is Ad Hoc Network?

A wireless ad hoc network is a decentralized type of wireless network. The network is ad hoc because it does not rely on a pre-existing infrastructure, such as routers in wired networks or access points in managed wireless networks. Mobile Ad Hoc Network In ad hoc network, all the nodes themselves are responsible for routing […]

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Configuration SIP Extension in Asterisk FreePBX
Configuration SIP Extension in Asterisk FreePBX

In the previous tutorial we learned Installation of Asterisk Freepbx Now in this tutorial we will  work on freepbx configure phone, freepbx extension settings, freepbx sip extension setup and SIP Extension in FreePBX. We select to install Free PBX as a virtual machine. We installed it on VM Workstation as a virtual server machine. So […]

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Installation of AsteriskNow Freepbx
Installation of AsteriskNow Freepbx

FreePBX is a dynamic and open source software package that uses the power of Linux to bring the function of Asterisk. Before we can administrate a FreePBX system, we have to complete the installation process and configure FreePBX. The installation of AsteriskNow FreePBX server is time taking you can have a coffee break too during the […]

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